🎨 style: 修复 approval_demo.rs 代码格式问题

- 移除多余空格
- 统一 println! 宏格式
- 符合 rustfmt 标准

Author: foxzool

docs/apis/helpdeks-v1.md

@@ -41,6 +41,7 @@
 [获取服务台自定义字段](https://open.feishu.cn/document/server-docs/helpdesk-v1/ticket-management/ticket/customized_fields)
 
 #### 事件
+
 [创建工单](https://open.feishu.cn/document/server-docs/helpdesk-v1/ticket-management/ticket/events/created)
 [工单状态变更](https://open.feishu.cn/document/server-docs/helpdesk-v1/ticket-management/ticket/events/updated)
 
@@ -66,6 +67,7 @@
 ## 知识库
 
 ### 知识库管理
+
 [富文本](https://open.feishu.cn/document/server-docs/helpdesk-v1/faq-management/faq/rich-text)
 [创建知识库](https://open.feishu.cn/document/server-docs/helpdesk-v1/faq-management/faq/create)
 [删除知识库](https://open.feishu.cn/document/server-docs/helpdesk-v1/faq-management/faq/delete)
@@ -84,8 +86,21 @@
 [获取全部知识库分类](https://open.feishu.cn/document/server-docs/helpdesk-v1/faq-management/category/list-categories)
 
 ## 推送中心
+
 [创建推送](https://open.feishu.cn/document/server-docs/helpdesk-v1/notification/create)
 [更新推送](https://open.feishu.cn/document/server-docs/helpdesk-v1/notification/patch)
 [查询推送](https://open.feishu.cn/document/server-docs/helpdesk-v1/notification/get)
 [预览推送](https://open.feishu.cn/document/server-docs/helpdesk-v1/notification/preview)
 [提交审核](https://open.feishu.cn/document/server-docs/helpdesk-v1/notification/submit_approve)
+[取消审核](https://open.feishu.cn/document/server-docs/helpdesk-v1/notification/cancel_approve)
+[执行推送](https://open.feishu.cn/document/server-docs/helpdesk-v1/notification/execute_send)
+[取消推送](https://open.feishu.cn/document/server-docs/helpdesk-v1/notification/cancel_send)
+
+### 事件
+
+[推送审核通知](https://open.feishu.cn/document/server-docs/helpdesk-v1/notification/events/approve)
+
+## 事件订阅
+
+[订阅服务台事件](https://open.feishu.cn/document/server-docs/helpdesk-v1/event/subscribe)
+[取消订阅服务台事件](https://open.feishu.cn/document/server-docs/helpdesk-v1/event/unsubscribe)

docs/apis/task-v2.md

@@ -0,0 +1,4 @@
+# 任务模块
+
+[任务概述](https://open.feishu.cn/document/task-v2/overview)
+[常见问题](https://open.feishu.cn/document/task-v2/faq)

examples/api/approval_demo.rs

@@ -61,7 +61,7 @@ async fn demo_create_approval(client: &LarkClient) -> Result<(), Box<dyn std::er
             "required": true
         },
         {
-            "id": "amount", 
+            "id": "amount",
             "name": "申请金额",
             "type": "number",
             "required": true
@@ -286,10 +286,7 @@ async fn demo_search(client: &LarkClient) -> Result<(), Box<dyn std::error::Erro
     {
         Ok(response) => {
             if let Some(data) = response.data {
-                println!(
-                    "  ✅ 实例查询成功，找到 {} 个实例",
-                    data.instances.len()
-                );
+                println!("  ✅ 实例查询成功，找到 {} 个实例", data.instances.len());
             }
         }
         Err(e) => {